Also Martin Mull, who gets a lifetime pass for both Fernwood Tonight and the film Serial, but who I've also heard is a massive tool. Did Patton Oswalt tell a story about him? I can't remember where i heard that recently ...
Yeah, he talks about meeting Martin Mull on the 'Patton vs. Zach vs. Alcohol vs. Patton' EP. I don't think he had a specific story, he was just generally saying that sometimes in Hollywood the mediocre guys are nice and the talented guys are douchebags. Like when he met Martin Mull and he was an asshole, but Bruce Villanche was really nice.
Another confession, I like "celebrities are assholes" stories.